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From "Daryn Sharp (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-10789) Route webhdfs through the RPC call queue
Date Mon, 03 Oct 2016 20:14:21 GMT

    [ https://issues.apache.org/jira/browse/HDFS-10789?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15543295#comment-15543295

Daryn Sharp commented on HDFS-10789:

The ACL authorization is currently only checked when processing the IPC connection context
as part of the connection lifecycle prior to reading calls.  Webhdfs has no connection context.
 I think applying common ACLs to webhdfs would be a useful feature but as a separate jira.
 Most likely it should be a change in the webhdfs servlet.

> Route webhdfs through the RPC call queue
> ----------------------------------------
>                 Key: HDFS-10789
>                 URL: https://issues.apache.org/jira/browse/HDFS-10789
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: ipc, webhdfs
>            Reporter: Daryn Sharp
>            Assignee: Daryn Sharp
>         Attachments: HDFS-10789-1.patch, HDFS-10789.patch
> Webhdfs is extremely expensive under load and is not subject to the QoS benefits of the
RPC call queue.  HADOOP-13537 provides the basis for routing webhdfs through the call queue
to provide unified QoS.

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